Abstract
Positron emission tomography (PET) had been applied in clinical early diagnosis of various tumors and other diseases. The methylated synthetic conditions of (-)-[11C]-(1R,2S)-meta-hydroxyephedrine ((-)-[11C]HED), considered as one of the most important radiopharmaceuticals for PET, were optimized through single factor and orthogonal design methods. Here, we reported an improved purification protocol. The radiochemical yields of the final product were over 45% (decay-corrected and based on [11C]methyl iodide) (n = 50). The radiochemical purities and chemical purities were over 99% (n = 50) and 97% (n = 50), respectively. The automatic radiosynthesis procedure of (-)-[11C]HED with relatively high radiochemical yield was convenient and reliable.
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This work was supported by the fund of National Key Clinical Specialty Project.
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Liu, L., Li, X., Dong, L. et al. A novel strategy for the preparation of the injectable PET/CT radiopharmaceutical (-)-[11C]-(1R,2S)-meta-hydroxyephedrine ((-)-[11C]HED. J Radioanal Nucl Chem 320, 543–549 (2019). https://doi.org/10.1007/s10967-019-06534-5
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DOI: https://doi.org/10.1007/s10967-019-06534-5